Deputy Dean of the Collegium of Socio-Economics at SGH Warsaw School of Economics and Head of the Department of Economic Theory. A graduate of SGH Warsaw School of Economics, where he also obtained his doctoral degree in economic science on the basis of dissertation entitled „James Tobin’s concept of budget deficit and public debt versus Ricardian equivalence theorem” [Jamesa Tobina koncepcja deficytu budżetowego i długu publicznego a ricardiański teoremat ekwiwalentności]. He received his postdoctoral degree in economics on the basis of the monograph entitled „Liquidity trap and monetary accommodation of fiscal expansion” [Pułapka płynności a monetarna akomodacja fiskalnej ekspansji]. His research and academic work focus on theoretical analysis of the effectiveness of expansionary fiscal and monetary policies.